>> ryan is trying to keep the momentum of mitt romney. biden wants to stop it cold. that's going to be difficult for him to do in the way this format is, both of them sitting at a table. it's tougher to get aggressive in that situation. but i expect that won't stop him from trying. so i think that's what weare going to look at, particularly women. i think both campaigns will be try being to -- romney really close with women after the last debate. i think that's going to be the battleground, i expect,ats least. we'll see. >> i think we know what to expect from paul ryan. paul ryan, even before he was picked as mitt romney's runningmate was making the argument what the country needed was a choice. this is going to be two alternative visions of two futures for the country. it wasn't going to be a referendum. i expect paul ryan to lay out that choice. the big question for me is what joe biden is going to do. is he going to try on his own to reverse the momentum, as joe suggests, being aggressive, going after paul ryan? or play the role of elder statesman, let the debate